Protect your furniture and home from water damage and give yourself peace of mind. The True Choice Store Waterbed Safety Liners are both made of high quality and durable vinyl fabric. Both are made of a strong and heat resistant fabric designed to work with waterbed heaters and provide years of comfort. Our standard liner is made up of durable marine grade vinyl that is amply over-cut and strong enough to stand up. Comes with our True Choice Stores replacement guarantee. If the product is defective simply return the item for a no questions asked replacement. The True Choice Stores Premium liner is 80% thicker than the standard liner and reinforced with Dura-Flex vinyl and a fiber board membrane for added stability. The True Choice Stores Premium liner also comes with our no questions asked guarantee. If the product is defective simply return the item for a no questions asked replacement.